Big-headed ants are light brown to dark reddish brown, and have two sizes of workers (one size has enormous heads...seed crackers). Found throughout the U.S. it is rare that big-headed ants live indoors, preferring protected outdoor areas under logs, mulch, firewood, or patio blocks. Active forager, ant trails are common along sidewalks, foundations, and inside along baseboards and under carpets. Feeds on insects, protein, grease, sweets, seeds. There are several dozen species of this two node Big-Headed Ant.